Search results

Explanation of size press edge wipe operation and proper setup

Improper setup of the edge wipe when running starch means poor doctoring results outside the sheet path. Extension past the holder is a critical part of setup.

Press fabric monitoring explains machine operating performance

Good press felt monitoring and conditioning methods help avoid runnability and quality problems. There is no single approach - but some of the best practices are described in this article.

General safety tips to follow when working around the calender

Modern calenders are designed to minimize risks. However, despite safety-conscious equipment designs, operators must still exercise extreme caution around paper machinery.

An introduction to troubleshooting with vibration signatures

The moment an asset is placed in service it is headed towards failure. It is the vibration analyst with tools and techniques, who helps prevent costly downtime.

Winding principles part 2 - effect and elements of nip pressure

The relationship between rider roll pressure and shipping roll hardness is neither simple nor direct. This second article in the Winding Principles series explores the interrelationship between rider roll pressure, relief pressure, roll weight and nip load.

Know the winder danger zones and related safety equipment

Working in the winder area involves risk to operators and maintenance personnel. Although guards and warning lights and horns help to improve safety, workers must always be aware of the risks involved in each section of the winder.

Winding principles part 3 - drum torque control methods, summary

When web tension and drum nip pressure are constant, drum torque will assure uniform or diminishing roll hardness from the core toward the outside of the rolls.

Speed increase creates suction roll bearing vibration, case study

Analysis of unusually high vibration levels from a suction roll back internal bearing pointed to a recent speed increase. Lubricant and a transducer helped.

Mill finds good housekeeping can reduce vibration, case study

PM5 was producing waves of vibration that speed limited the machine, reducing production by 10%. Vibration analysis pointed to the gearbox pinion shafts.

Understanding coating viscosity, rheograms and rheology problems

Coating rheology is measured with low shear and high shear viscosity instruments. In coating rheology, viscosity is the measure of the resistance of a coating formulation to an imposed flow.